I'm planning to make a dashboard web app with data analytics. It'll also include subscription option. So I'm trying to decide which language to use on the back end which I planing to make as RESTful api.
Current options for the backend are python, Ruby and php.
I'm not really sure about python. Ruby seems interesting, but I've read its a bit slow and some of the codes does look like magic. I'm very familiar with php, so I'm very biased toward it right now to use php with Lumen framework.
I'm also hoping to scale up the system in the future.
So, can you guys gimme a little help here in choosing a language and framework.